In an effort to explore why CO2 output (VCO2) at peak exercise is lower during pregnancy than postpartum despite little change in the peak O2 uptake (VO2), we determined the VCO2/VO2 relationship during rapidly incremental exercise and estimated the anaerobic threshold (AT) and the respiratory compensation (RC) point. We measured heart rate, VO2, VCO2, and minute ventilation (VE) at rest and du...

PURPOSE The current study aimed to gain insight into the physiological profile of elite basketball players in Belgium in relation to their position on the field. METHODS The group consisted of 144 players, divided into 5 groups according to position (point guards [PGs], shooting guards [SGs], small forwards [SFs], power forwards [PFs], and centers [Cs]). The anthropometrics were measured and ...

The purpose of this study was to compare two methods for determination of anaerobic threshold from two different treadmill protocols. Forty-eight Croatian runners of national rank (ten sprinters, fifteen 400-m runners, ten middle distance runners and thirteen long distance runners), mean age 21.7 +/- 5.1 years, participated in the study. They performed two graded maximal exercise tests on a tre...

Eleven children with spastic cerebral palsy (CP) who could walk underwent exercise at the anaerobic threshold (AT) point. The subjects exercised for 20 minutes per session, twice a week for a period ranging from 6 to 20 weeks. The subjects were divided into two groups. The leg exercise group contained six CP children who exercised on a cycle ergometer with average attendance of 1.8 days a week....

The aim of the study was to assess fitness profile of elite Croatian female taekwondo athletes and to determine which physical, physiological and motor characteristics differentiate mostly the successful from the less successful fighters. Thirteen national taekwondo champions were divided into two groups according to their senior international competitive achievements. Physiological characteris...

PURPOSE Various measures of autonomic function have been developed, and their applicability and significance during exercise are controversial. METHODS Physiological data were therefore obtained from 23 sport students before, during, and after exercise. Measures of R-R interval variability, QT variability index (QTvi), and electrodermal activity (EDA) were calculated. We applied an incrementa...

We evaluated the effect of a 12-week training programme of walking on cardiorespiratory parameters in patients with type 2 diabetes mellitus and obesity (DM). Eleven DM patients (duration of diabetes, 6,9±5 years), treated with a diet or oral antidiabetics, were included in this study. The anaerobic threshold and cardiorespiratory parameters were determined by symptom-limited spiroergometry bef...

The use of cardiopulmonary exercise testing (CPET) to evaluate cardiac and respiratory function was pioneered as part of preoperative assessment in the mid 1990s. Surgical procedures have changed since then. The patient population may have aged; however, the physiology has remained the same. The use of an accurate physiological evaluation remains as germane today as it was then. Certainly no 'm...

[Purpose] The aim of this study was to investigate the steady state of oxygen uptake (VO2) at several standing up frequencies to clarify whether workload in the sit-to-stand exercise (STSE) is greater than the anaerobic threshold (AT). [Subjects] Ten healthy young subjects performed the STSE. [Methods] In the STSE, subjects stood up and sat down without using their arms to push-off from the cha...

a Hospital Federal de Bonsucesso, Serviço de Fisioterapia, Rio de Janeiro, RJ, Brazil b Hospital Universitário Gaffrèe e Guinle UNIRIO, Serviço de Fisioterapia, Rio de Janeiro, RJ, Brazil c Universidade Federal do Rio de Janeiro, Faculdade de Medicina, Instituto do Coração Edson Saad (Ices), Rio de Janeiro, RJ, Brazil d Universidade Federal do Rio de Janeiro, Instituto Alberto Luiz Coimbra de P...